JPH0757568B2 - Smoke exhaust device for smoking seat by air flow - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to, for example, smoke generated in a smoking seat in a passenger seat in an aircraft, a ship, or a vehicle or in a region where a non-smoking seat and a smoking seat are separated from each other and flows into the non-smoking seat. The present invention relates to a smoke exhaust device that prevents the above.

(Prior art) In the above-mentioned vehicles and other places where a large number of people use, it has already been divided into non-smoking seats and smoking seats, and the smoke generated in the smoking seats is distributed to the non-smoking seats between the two compartments. As a means for preventing this, a buffer area with a space of about 2 m is provided between the non-smoking seat and the smoking seat, or a wall board such as a partition is used to block the boundary between the two divided areas.

(Problems to be Solved by the Invention) In the above-mentioned conventional means, which is provided with a buffer area to prevent smoke in the smoking seat from flowing into the non-smoking seat, it is prevented that high-density smoke flows into the non-smoking seat. It is unavoidable that the smoke is diluted to some extent and reaches the non-smoking seat, and it is practically impossible to provide such a buffer area in the passenger seat portion of a vehicle such as an aircraft because of space utilization. Further, the above-mentioned conventional means having a partition has a problem in that the vehicle needs to secure an evacuation route in the event of a disaster, and it is difficult to employ the vehicle because it hinders the visibility.

(Means for Solving the Problems) In view of the above, the present invention eliminates smoke generated in a smoking seat toward the rear of the smoking seat by the air flow to prevent the smoke from flowing into the non-smoking seat. A smoking seat is provided in the rear of the smoking seat, and a horizontal slit-like outlet is provided in the upper part of the vicinity of the front end of the smoking seat so that the smoke generated in the smoking seat is flowed backward in the upper part of the smoking seat. A proper number of air blowing nozzles that are opened diagonally downward toward the front, and the diagonal downward angle of which can be adjusted to an appropriate angle, and the flow velocity above the seat is 0.1 to 10% from the outlet of the air blowing nozzle.
The present invention is characterized in that air is blown out so as to have a flow rate of 0.2 m / s, and a part of the air conditioning air in the entire area including the non-smoking seat and the smoking seat is used as the blowing air.

(Operation) In the present invention, the air blown out from the air blowing nozzle provided in the upper portion near the front end of the smoking seat blows obliquely downward at an appropriate angle with respect to the smoking seat, so that the air blows out in the upper space of the smoking seat. The smoke flows toward the rear side, and thus the smoke caused by smoking is removed toward the rear while being attracted by the flow of the air. Therefore, it is possible to prevent the smoke generated in the smoking seat from flowing into the non-smoking seat, and the air flows rearward above the seat. Since the air blown toward the smoker does not hit the smoker directly, it does not cause smoker discomfort due to wind pressure.
No smoke is blown to smokers, and by using a part of the air conditioning ventilation air for all seats as blowing air, there is no particular change in the environmental conditions due to air conditioning, and for this blowing air As a result, it is possible to omit the provision of a separate air blower, and the smoke exhaust device can be simplified. It should be noted that the number of blowing nozzles installed may increase or decrease depending on the number of smoking seats, and multiple blowing nozzles may be arranged side by side depending on the arrangement of the seats, or multiple rows may be provided in the front-back direction. Is. Further, according to the experiment, the blowing nozzle was opened obliquely downward at about 15 ° to the smoking seat, and good results were obtained when the air flow velocity above the seat was 0.1 to 0.2 m / s. When air for ventilation is used as, the air volume of 1/10 to 1/20 of the total air volume for ventilation was sufficient to achieve the purpose.

(Example) The Example of this invention is described about drawing.

The illustrated embodiment shows a case where a cylindrical area surrounded by a ceiling, a floor and side walls is intended for passenger seats in an aircraft, for example, as shown in FIG. The air blowing nozzle (1) is provided by utilizing the lower position of the trunk (2) formed at the upper position near the front end of the smoking seat, in the illustrated example, the ceiling part of the cabin a, Air was unidirectionally fed from the nozzle (1) into the tubular region. Although the shape of the blow-out nozzle (1) is arbitrary, it is advantageous to use a horizontally elongated slit-like opening as shown in the figure, and each of the seats (3) arranged in three rows as shown in FIG. As shown in FIG. 1, each of them is provided on the upper part, and three rows are provided in the front-rear direction in the vicinity of the front end of the smoking seat. The communication is made through (5).

As shown in FIGS. 3 and 4, each air blowout nozzle (1) is tiltably attached to a fixed portion by a shaft (6), and an opening of a nozzle tip is directed obliquely downward at an appropriate angle with respect to a smoking seat. Pin (8) protruding from the side surface of the nozzle (1) is fitted into the arc-shaped hole (7) of the guide fitting (6) attached to the fixed part so that the pin (8) can be opposed to the pin (8). (9)
Then, the nozzle (1) is stabilized at an appropriate adjustment position so that the nozzle (1) is firmly held at the set inclined position.

It should be noted that the nozzle (1) does not project to the lower surface of the trunk (2) as shown in the drawing, but a recess is provided in the lower surface of the trunk (2), and the nozzle (1) is installed in the recess to improve the appearance and the tip thereof. The opening may be opposed to the desired area at a predetermined angle.

According to the experiment, when air is blown out in a substantially horizontal direction with the inclination of the blow-out nozzle (1) set to an inclination angle of 0 ° as shown in FIG. 5A, the air flowing toward the rear above the seat (3) is shown. Could not attract the smoke of a seated smoker.

Next, as shown in FIG. 5B, when the inclination angle is set to 15 °, the air flow does not directly hit the seated smoker, and the smoke produced by smoking is reliably captured by the air flow above and attracted backward. However, when the inclination angle of the nozzle (1) was gradually increased to 30 ° as shown by the phantom line in the figure, the nozzle (1)
The air blown from was directly blown to the smoker, causing discomfort. Therefore, although the outlet nozzle (1) has an inclination angle of about 15 °, when one seat has a large number of seats in the front-rear direction as shown in FIG. As shown in the figure, a plurality of nozzles (1) are arranged at appropriate intervals, and the laminar flow of air blown out from each nozzle (1) is sequentially overlapped on the upper part to form a continuous laminar flow. Then, the smoke in the smoking seat is sequentially attracted backward.

It is possible to install a blower for blowing air separately without using the air for ventilation as the blowing air, but there are various procedures for application of approval from various government agencies regarding the addition or change of equipment in aircraft etc. Therefore, it is desirable to use the air for air conditioning and ventilation without affecting the overall air conditioning and ventilation, and in particular because the ventilation equipment can be omitted.
In addition, as shown in FIG. 2, the air conditioning in the aircraft is generally the air outlets (10) (10) on both sides of each room that are connected to the air supply duct (4).
Blows conditioned air into the room from the air grills on both sides (11)
It was designed to be discharged from the (11) through the underfloor currency material (12) to the outside of the machine from the tail of the chamber.

(Effects of the Invention) According to the present invention, the air blown obliquely downward toward the smoking seat from a proper number of blowing nozzles provided at the upper part of the vicinity of the front end of the smoking seat is not blown to the directly seated smoker. It causes a smoke to flow into the upper space of the smoking seat as a laminar flow, and attracts smoke at the time of smoking to the air flow to remove it backward so that smoke can be reliably prevented from flowing into the non-smoking seat side. By directly using a part of the air for air conditioning and ventilation as the blown air, it is not necessary to install a blower for the blown air, and the air conditioning environment is not affected. Have an effect.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a side view of the inside of an aircraft to which the device of the present invention is applied, FIG. 2 is a front view of the same, and FIG.
FIG. 4 is a side view showing an example of an air blowing nozzle, FIG. 4 is a front view of the same, and FIGS. 5A and 5B are side views of a part showing air blowing states from the blowing nozzles. (1) …… Air blowout nozzle (3) …… Seat

Claims (2)

[Claims] 1. A smoking seat is provided behind the non-smoking seat, and a horizontally elongated slit shape is provided above the front end of the smoking seat so that smoke generated in the smoking seat is flowed backward through the upper portion of the smoking seat. The air outlet is opened diagonally downward toward the smoking seat, and an appropriate number of air outlet nozzles whose oblique downward angle can be adjusted to an appropriate angle are provided. From the outlet of the air outlet nozzle, smoking is performed. The flow velocity above the seat is 0.1 to 0.2 m /
A smoke exhaust device for a smoking seat by an air flow, characterized in that air is blown out so as to become s. 2. The smoke exhaust system for a smoking seat by an air flow according to claim 1, wherein a part of the air conditioning air in the entire area including the non-smoking seat and the smoking seat is used as the blowing air.